Re: Going from simple to super CAPTCHA

At 6:19 PM +0200 6/12/07, Tijnema wrote:

On 6/12/07, Robert Cummings <robert@interjinn.com> wrote:

On Tue, 2007-06-12 at 12:01 -0400, Robert Cummings wrote:

On Tue, 2007-06-12 at 11:56 -0400, Robert Cummings wrote:

    (10000 * 100) / 1000000 = .10 = 10% of the time

 Bad math alert... (10000 * 100) / 1000000 = 10    ;)

Still the same answer though, was just mixing what I wrote with what I was thinking :)

Bleh, what's wrong with me today... it's 1% not 10%. Still within reason for a spammer. *smacks head to clear the fog* Cheers, Rob. So, that means that you need to allow maximum of 10 attempts per few minutes, so that there will be 0,1% change ;) Also, I wasn't thinking about just one test. For each additional test the odds for success reduce by 99 percent. In other words, 1 test = 1 percent, 2 test = .1 percent, 3 test = .01 percent -- at what point would not be within reason for spammy? Would it be too much to ask the user to click three times? I dunno, but for myself, I would rather find something and click it three times than to decipherer and enter several screwy letters. Cheers, tedd -- ------- http://sperling.com http://ancientstones.com http://earthstones.com